cos 2A cos2B+sin2(A-B)-sin2(A+B)?
437 064804426f4063d472f2f1a1c64804426f4063d472f2f1a1cIf $${secθ+tanθ\over secθ-tanθ}={5\over 3}$$ then sinθ is equal to ;
436 06332e72131300b7ce4906883If $${cos^2θ\over cot^2θ-cos^2θ}=3,$$ where $${0^0<θ<90^0}$$ then the value of θ is:
435 064cceaad8f85ca71558f2e3e$$\left({1\over cosecθ}-{1\over sinθ} \right)+{1\over {cosecθ-cotθ}} -{1\over secθ+tanθ} =?$$
425 064bf7b8488d5e4f52df2abf6If $${secθ+tanθ\over secθ-tanθ}=2{51\over79}$$, then the value of sinθ is equal to:
414 064ccb76929beb3482a58126a△ABC is right-angle triangle at B and tan A = $$3\over 4$$, then sin A + sin B + sin C will be equal to:
406 064805acba33e0f47b771a1c5